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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "base/logging.h" |
| 6 #include "cc/resources/resource_util.h" |
| 7 #include "testing/gtest/include/gtest/gtest.h" |
| 8 |
| 9 namespace cc { |
| 10 namespace { |
| 11 |
| 12 struct TestFormat { |
| 13 ResourceFormat format; |
| 14 size_t expected_bytes; |
| 15 size_t expected_bytes_aligned; |
| 16 }; |
| 17 |
| 18 // Modify this constant as per TestFormat variables defined in following tests. |
| 19 const int kTestFormats = 4; |
| 20 |
| 21 class ResourceUtilTest : public testing::Test { |
| 22 public: |
| 23 void TestVerifyWidthInBytes(int width, const TestFormat* test_formats) { |
| 24 for (int i = 0; i < kTestFormats; ++i) { |
| 25 EXPECT_TRUE(ResourceUtil::VerifyWidthInBytes<size_t>( |
| 26 width, test_formats[i].format)); |
| 27 } |
| 28 } |
| 29 |
| 30 void TestCheckedWidthInBytes(int width, const TestFormat* test_formats) { |
| 31 for (int i = 0; i < kTestFormats; ++i) { |
| 32 size_t bytes = ResourceUtil::CheckedWidthInBytes<size_t>( |
| 33 width, test_formats[i].format); |
| 34 EXPECT_EQ(bytes, test_formats[i].expected_bytes); |
| 35 } |
| 36 } |
| 37 |
| 38 void TestUncheckedWidthInBytes(int width, const TestFormat* test_formats) { |
| 39 for (int i = 0; i < kTestFormats; ++i) { |
| 40 size_t bytes = ResourceUtil::UncheckedWidthInBytes<size_t>( |
| 41 width, test_formats[i].format); |
| 42 EXPECT_EQ(bytes, test_formats[i].expected_bytes); |
| 43 } |
| 44 } |
| 45 |
| 46 void TestUncheckedWidthInBytesAligned(int width, |
| 47 const TestFormat* test_formats) { |
| 48 for (int i = 0; i < kTestFormats; ++i) { |
| 49 size_t bytes = ResourceUtil::UncheckedWidthInBytesAligned<size_t>( |
| 50 width, test_formats[i].format); |
| 51 EXPECT_EQ(bytes, test_formats[i].expected_bytes_aligned); |
| 52 } |
| 53 } |
| 54 |
| 55 void TestVerifySizeInBytes(const gfx::Size& size, |
| 56 const TestFormat* test_formats) { |
| 57 for (int i = 0; i < kTestFormats; ++i) { |
| 58 EXPECT_TRUE(ResourceUtil::VerifySizeInBytes<size_t>( |
| 59 size, test_formats[i].format)); |
| 60 } |
| 61 } |
| 62 |
| 63 void TestCheckedSizeInBytes(const gfx::Size& size, |
| 64 const TestFormat* test_formats) { |
| 65 for (int i = 0; i < kTestFormats; ++i) { |
| 66 size_t bytes = ResourceUtil::CheckedSizeInBytes<size_t>( |
| 67 size, test_formats[i].format); |
| 68 EXPECT_EQ(bytes, test_formats[i].expected_bytes); |
| 69 } |
| 70 } |
| 71 |
| 72 void TestUncheckedSizeInBytes(const gfx::Size& size, |
| 73 const TestFormat* test_formats) { |
| 74 for (int i = 0; i < kTestFormats; ++i) { |
| 75 size_t bytes = ResourceUtil::UncheckedSizeInBytes<size_t>( |
| 76 size, test_formats[i].format); |
| 77 EXPECT_EQ(bytes, test_formats[i].expected_bytes); |
| 78 } |
| 79 } |
| 80 |
| 81 void TestUncheckedSizeInBytesAligned(const gfx::Size& size, |
| 82 const TestFormat* test_formats) { |
| 83 for (int i = 0; i < kTestFormats; ++i) { |
| 84 size_t bytes = ResourceUtil::UncheckedSizeInBytesAligned<size_t>( |
| 85 size, test_formats[i].format); |
| 86 EXPECT_EQ(bytes, test_formats[i].expected_bytes_aligned); |
| 87 } |
| 88 } |
| 89 }; |
| 90 |
| 91 TEST_F(ResourceUtilTest, WidthInBytes) { |
| 92 // Check bytes for even width. |
| 93 int width = 10; |
| 94 TestFormat test_formats[] = { |
| 95 {RGBA_8888, 40, 40}, // for 32 bits |
| 96 {RGBA_4444, 20, 20}, // for 16 bits |
| 97 {ALPHA_8, 10, 12}, // for 8 bits |
| 98 {ETC1, 5, 8} // for 4 bits |
| 99 }; |
| 100 |
| 101 TestVerifyWidthInBytes(width, test_formats); |
| 102 TestCheckedWidthInBytes(width, test_formats); |
| 103 TestUncheckedWidthInBytes(width, test_formats); |
| 104 TestUncheckedWidthInBytesAligned(width, test_formats); |
| 105 |
| 106 // Check bytes for odd width. |
| 107 int width_odd = 11; |
| 108 TestFormat test_formats_odd[] = { |
| 109 {RGBA_8888, 44, 44}, // for 32 bits |
| 110 {RGBA_4444, 22, 24}, // for 16 bits |
| 111 {ALPHA_8, 11, 12}, // for 8 bits |
| 112 {ETC1, 6, 8} // for 4 bits |
| 113 }; |
| 114 |
| 115 TestVerifyWidthInBytes(width_odd, test_formats_odd); |
| 116 TestCheckedWidthInBytes(width_odd, test_formats_odd); |
| 117 TestUncheckedWidthInBytes(width_odd, test_formats_odd); |
| 118 TestUncheckedWidthInBytesAligned(width_odd, test_formats_odd); |
| 119 } |
| 120 |
| 121 TEST_F(ResourceUtilTest, SizeInBytes) { |
| 122 // Check bytes for even size. |
| 123 gfx::Size size(10, 10); |
| 124 TestFormat test_formats[] = { |
| 125 {RGBA_8888, 400, 400}, // for 32 bits |
| 126 {RGBA_4444, 200, 200}, // for 16 bits |
| 127 {ALPHA_8, 100, 120}, // for 8 bits |
| 128 {ETC1, 50, 80} // for 4 bits |
| 129 }; |
| 130 |
| 131 TestVerifySizeInBytes(size, test_formats); |
| 132 TestCheckedSizeInBytes(size, test_formats); |
| 133 TestUncheckedSizeInBytes(size, test_formats); |
| 134 TestUncheckedSizeInBytesAligned(size, test_formats); |
| 135 |
| 136 // Check bytes for odd size. |
| 137 gfx::Size size_odd(11, 11); |
| 138 TestFormat test_formats_odd[] = { |
| 139 {RGBA_8888, 484, 484}, // for 32 bits |
| 140 {RGBA_4444, 242, 264}, // for 16 bits |
| 141 {ALPHA_8, 121, 132}, // for 8 bits |
| 142 {ETC1, 66, 88} // for 4 bits |
| 143 }; |
| 144 |
| 145 TestVerifySizeInBytes(size_odd, test_formats_odd); |
| 146 TestCheckedSizeInBytes(size_odd, test_formats_odd); |
| 147 TestUncheckedSizeInBytes(size_odd, test_formats_odd); |
| 148 TestUncheckedSizeInBytesAligned(size_odd, test_formats_odd); |
| 149 } |
| 150 |
| 151 TEST_F(ResourceUtilTest, WidthInBytesOverflow) { |
| 152 int width = 10; |
| 153 // 10 * 16 = 160 bits, overflows in char, but fits in unsigned char. |
| 154 EXPECT_FALSE(ResourceUtil::VerifyWidthInBytes<signed char>(width, RGBA_4444)); |
| 155 EXPECT_TRUE( |
| 156 ResourceUtil::VerifyWidthInBytes<unsigned char>(width, RGBA_4444)); |
| 157 } |
| 158 |
| 159 TEST_F(ResourceUtilTest, SizeInBytesOverflow) { |
| 160 gfx::Size size(10, 10); |
| 161 // 10 * 16 * 10 = 1600 bits, overflows in char, but fits in int. |
| 162 EXPECT_FALSE(ResourceUtil::VerifySizeInBytes<signed char>(size, RGBA_4444)); |
| 163 EXPECT_TRUE(ResourceUtil::VerifySizeInBytes<int>(size, RGBA_4444)); |
| 164 } |
| 165 |
| 166 } // namespace |
| 167 } // namespace cc |
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